A.2500 B.2000 C.1500 D.3000
A.6500m;3700m B.6500m;3800m C.6400m;3700m D.6400m;3800m
A.水箱無水 B.泄漏檢測 C.給水系統(tǒng)故障 D.污物箱已滿